50 Dip 3-in-1 Test Strips Blue Sparkle for Ground Pool Spa and Hot Tubs Treatment to Measures PH, Alkaline and Chlorine

Pack includes 50 x Blue Sparkle dip test strips that make caring for your ground pool/hot tub/spa simple and easy Measures chlorine, PH and alkalinity: Measures various quality levels of ground swimming pool/hot tub/spa water to indicate what chemicals are needed to prevent harmful bacteria entering your water Directions: Dip strip and remove immediately, hold strip level for 15 seconds, use simple-to-use guide on back of packet to read the results Quick and easy to use - simply dip the test strips into...